Bergh



(No Model.)

H. VAN HOEVENBERGH.

GOMBINED ELECTRIC LAMP LIGHTING AND EXTINGUISHING'DEVIGE.

- No. 297,879. Patented Apr; 29,1884.-

WITNESSES INVENTOR Henry Vmlloez/enbe yk,

u, PETERS. Pholo-Lilhographor, Washington. m;

UNITED STATES HENRY VAN HOEVENBERGH,

OF ELIZABETH, NEW JERSEY.

COMBINED ELECTRIC-LAMP LIGHTING AND EXTINGUISHING DEVICE.

SPECIFICATION forming part Of Letters Patent NO. 297,879, dated April 29, 1884.

- Application filed October 6, 1883. No model.)

The invention consists in combining, with an apparatus constructed upon the general principles involved in the electric-lamp lighting device for which a patent was issued to me September 4, 1883, a device for automatically extinguishing the lamp with equal facility. The extinguishing device'consists of a bellows, from which is led a tube which is capable of being thrust above the upper extremity of the lamp-chimney, but which is normally held away from the same. A cord for compressing the bellows extends over suitable pulleys to any convenient point at which it may be desired to light orto extinguish the lamp. A circuit-closing device for automatically causing the lamp to be'lighted is also connected with this cord. By giving the cord a slight pull the circuit of a battery willbe completed through I an electrode extending near the wick of the lamp, and the heat generated by the current traversing this electrode will cause the wick to be ignited. By giving the cord a harder pull than that required for lighting the lamp the bellows will be compressed and air will, be forced through the tube, the extremity of which is simultaneously thrust above the chimney. The current of air thus forced through the tube enters the chimney and extinguishes the light in a wellknown manner.

In the accompanying drawings, Figure 1 is a front elevation of an apparatus embodying my invention, and Fig. 21s a side elevation of the same.

located near the wick of the lamp, and con- I sisting of a coil of line platinum wire adapted to be heated sufficiently to ignite the wick when traversed by a current of electricity" from a battery, E. The electrode bterminates in two contact-points, c 0, upon opposite sides of the lamp-burner O. The bracket A carries two corresponding contact-springs,

d and d, which are respectively connected through conductorsl and 2 with opposite poles of the battery E. Whenthe lamp is in placeupon its supporting-shelf a of the bracket A the conductors l and 2 will be connected with each other through the electrode 1). If the circuit of the battery be then completed,

the electrode will be heated sufficiently to ignite the wick. For the purpose of thus completing the circuit when it is desired, the lamp and circuit-closing device F is employed. This device consists of a contact-spring, f, connected with one pole of the battery E by means of a conductor, 3, and a contact-lever, f, with which the conductor 2 is connected. The lever f is normally held away from the contact-spring f by means of a spring, f extending above a stationary pin, f For the purpose, however, of completing the circuit when desired, a detent, g, which is supported upon a movable plate, G, is employed. To the plate G is attached a cord, H, by means of which the plate may be raised, thereby causing the extremity of the detent G to strike against the heel of the lever f. The contact-point f upon this lever will thereupon be forced against the spring f and the circuit of the battery E will be completed. By holding the cord thus slightly pulled for a moment the lamp will be lighted, whereupon the cord may be released, and the circuitcloser will assume the position shown in the drawings.

For the purpose vof extinguishing the lamp a bellows, K, is employed. This bellows is, for convenience, placed beneath the shelf a, and adapted to be compressed by forcing the front plate, k, backward by means of a cord, h, attached to the cord H. From the bellows K extends a flexible tube, m, which leads through V the shelf a to the lower extremity of a bent tube m. The extremity m of this tube the lamp B when the latter is in its position upon the shelf a. The tube m is, however, normally held backward, so that the extremity 'm is not above the chimney, by means of a spring, m. The tube in is supported upon a pivot, m", which permits it to be moved forward in opposition to the force exerted by the spring m, so that the extremity m" will be directly above the chimney. For the purpose of thus carrying the tube above the chimney when it is desired to extinguish the lamp, the cord H is led over suitable pulleys, a, n", and a. The link 0 is attached to the tube m, beneath the pivot m", and through this link extends the portion of the cord H which is between the pulleys n and M. 'W hen the cord H is drawn tightly, the portion between the pulleys a and a being straightened, the link 0 will cause the lower portion of the tube m to be drawn backward, thus forcing the extremity m forward in opposition to the spring m. \Vhen, however, the cord is at rest, the spring will cause the tube m to fall back into the position shown in Fig. 2, and will draw the portion of the cord H between the pulleys n and a forward, as shown in the figure. If, therefore, it is desired to extinguish the lamp instead of lighting it, the cord H is pulled with greater force, thereby causing the detent g to pass beyond the lever f, allowing the latter to resume its normal position. At the same time the tube m is thrown into its forward position and the bellows K is compressed. Air

will thus be forced through the tube m and down the chimney of the lamp, which will thereupon be extinguished. For the purpose of allowing the detent g to resume its normal position when the cord H is released, the detent is pivoted to the plate G at g, and it is normally held in its forward position by means of a yielding spring, 9. The lower contact-surface of the detent g is beveled, as shown at g, and the upper surface of the heel of the lever g is also beveled, as shown at f. The downward movement of the plate G will thus force the detent backward, allowing it to pass below the lever without actuating it. The spring 9 will thereupon force the detent 9 forward into its normal position against a stop, 9".

The bellows K may be provided with a weight or any suitable means for causing it to expand when released from the cord H, and it is preferably also provided with avalve, It, for permitting it to more quickly resume its normal position. The force employed for expanding the bellows may also serve to bring the cord H back to its normal position; or a suitable spring or weight may be applied to the lower extremity of the plate G.

I claim as my invention 1. The combination, substantially as hereinbefore set forth, with a lamp, an electrode for igniting the same, and a battery, of a bellows, a tube leading from said bellows, and a device which may be so actuated as to either complete the circuit of said battery through said electrode a sufficient time to ignite said lamp or to compress said bellows and simultaneously cause said tube to extend above said lamp.

2. The combination, substantially as hereinbefore set forth, of a lamp, an electrode for lighting the same, a battery, means for placing the said electrode in the circuit of said battery, a circuit-closing device, a cord for actuating said circuit-closing device, whereby the circuit of said battery may be completed through said electrode, and means, substantially such as described, operated by said cord for extinguishing said lamp.

3. The combination, substantially as hereinbefore set forth, of a battery, a lamp, adapted to be ignited by a current of electricity from said battery, a circuit-closing device, a cord, by means of which said circuit-closing device may be operated by a slight pull to close the circuit of said battery, and by a harder pull to again open the circuit of said battery, and means, substantially such as described, whereby said lamp may be extinguished under the influence of the harder pull.

4:. The combination, substantially as hereinbefore set forth, with a lamp, and means, substantially such as described, for igniting said lamp, of a bellows, a tube leading from said bellows into proximity to the chimney of said lamp, and a device which may at will. be so operated as to either actuate said igniting device, or to cause said bellows to be compressed and a current of air forced through said tube into said chimney.

5. The combination, substantially as hereinbefore set forth, with a shelf for supporting alamp, of a bellows, a tube leading from said bellows and normally held in a given position, and a cord for compressing said bellows and simultaneously causing said tube to extend above the chimney of said lamp, whereby said lamp may be extinguished.

6. The combination, substantially as hereinbefore set forth, with a shelf for supporting a lamp, of a bellows, a tube leading from said bellows above said shelf, the extremity of which tube is turned downward, a spring for normally holding said tube in a given position, and a cord for simultaneously causing the extremity of said tube to be moved into a position above the chimney of said lamp and simultaneously forcing a current of air from said bellows through said tube, whereby the lamp may be extinguished.

In testimony whereof I have hereunto subscribed my name this 28th day of September, A. D. 1883.

HENRY VAN HOEVENBERGH.

Witnesses:

DANIEL W. Enenconn, CHARLES A. TERRY. 

